Scott Disick's daughter is "one of the only things" he is proud of.
The 32-year-old reality star, who split from partner Kourtney Kardashian earlier this week amid claims she was tired of his wild partying, used his Instagram account to wish three-year-old Penelope a happy birthday as he didn't join her and the rest of his family in Disneyland on her special day.
Alongside a collage of pictures of the youngster, he wrote on Instagram: "1 of the only things I'm proud off about myself. Happybdayp (sic)"
While Scott - who also has sons Mason, five, and Reign, six months - wasn't in Disneyland for his daughter's big day, she was joined by a host of other family members, including her mother, older brother and grandmother Kris Jenner.
They were also joined by Kris' boyfriend Corey Gamble and other family friends, as well as Penelope's aunt, Kim Kardashian West, and cousin North West, two.
Kourtney and Penelope donned matching Tinkerbell costumes for the outing, while pregnant Kim and her daughter wore Yeezus shirts.
Kris also took to social media to wish her granddaughter a happy birthday.
She wrote on Instagram: "Happy 3rd Birthday to my little angel girl Penelope!!!!!! You are my ray of sunshine, who gives the best hugs and the sweetest kisses... I love you so much and thank God he has blessed us with YOU!!!! #loveofmylife #dollbaby #exactlylikeyourmother #couldyougetanycuter?! (sic)"
And Penelope's aunt, Khloe Kardashian, also shared a message for the birthday girl after missing out on her celebrations.
She wrote: "Happy birthday to my princess P!!! The sweetest little soul on this planet!! (sic)"
It was recently claimed that Scott - who spent time in rehab earlier this year - feels "overwhelmed" by fatherhood.
A source said: "He loves his kids. But he was never ready to be a stay-at-home dad. Scott rebels against the crazy responsibility of having three kids."